15b+7-3(4b+2)=

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Solution for 15b+7-3(4b+2)= equation:


Simplifying
15b + 7 + -3(4b + 2) = 0

Reorder the terms:
15b + 7 + -3(2 + 4b) = 0
15b + 7 + (2 * -3 + 4b * -3) = 0
15b + 7 + (-6 + -12b) = 0

Reorder the terms:
7 + -6 + 15b + -12b = 0

Combine like terms: 7 + -6 = 1
1 + 15b + -12b = 0

Combine like terms: 15b + -12b = 3b
1 + 3b = 0

Solving
1 + 3b = 0

Solving for variable 'b'.

Move all terms containing b to the left, all other terms to the right.

Add '-1' to each side of the equation.
1 + -1 + 3b = 0 + -1

Combine like terms: 1 + -1 = 0
0 + 3b = 0 + -1
3b = 0 + -1

Combine like terms: 0 + -1 = -1
3b = -1

Divide each side by '3'.
b = -0.3333333333

Simplifying
b = -0.3333333333

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